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<TITLE>Linear Noise Query</TITLE>
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<H2>Linear Noise Query</H2>
This interface is used to define queries to be computed by the linear noise approximation.
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    <p> Each query computes a linear noise estimate of the probability of "linexp  threshold", where:
    <ul>
        <li>linexp:  a linear expression involving system variables and numeric constants or parameters.   </li>
        <li>threshold: is of the form "&gt; constant" or "&lt; constant" or "[lower,upper]", where constant, lower, and upper are 
            either numbers or model parameters </li>
    </ul>
    <p> Furthermore, one has to specify the system or population size.
    <p> The boolean choice "normalised" is to be used if the threshold is expressed in terms of population density/concentration rather than on populations.
    <p> Linear noise computations require system variables to be <strong>normalised</strong>.
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